Carbureter.



W. J. STEINBRENNER.

GARBUBETEH.

\nuornou mum 3.2a, 1909.

1,016,108. Patented Jan. 30, 1912.

777% fill/2201011;

WILLIAM J. STEINIBRENNER, OF BUFFALO, NEW YORK.

CARBURETER.

Specification of Letters Patent.

Patented Jan. 30, 1912.

Application filed April 26, 1909. Serial No. 492,298.

To all whom it may concern:

Be t known that I, lVILLIAM J. STEIN- BRENNER, a citizen of the UnitedStates, and

resident of 'lluttalo, in the county of Erie and State of New York, haveinvented certain new and uset'iil Improvements in Carhureters, of whichthe following is a specification.

My invention relates to in'ip'rovements in carbureters and moreparticularly to that type of carlmreters designed for use in connectionwith internal conihustion-engines.

'lhe ohject o'l my invention is to provide a simple and inexpensivecarhureter wherein the various speeds for which carhureters aregenerally arranged may he obtained hy the manipulation of a #inglelement.

it also has tor its Ulljlt'l, the provision of a plurality ot:opiratlug-nozzles having their exit ends arranged in dilt'erenthorizontal planeand m disposed with reference to the controlling-valvethat the latter, when actuated, serves to ause an aspirating effect,first upon one nrnzzhrand thcn upon another.

'ith these and other objects in View, the invention consists in therelative arrangement of the aspiratlug-nozzles and the eontrollingwalve;and it also consists in the construction, arrangement and comhination ofparts to he hereinafter described and particularly.pointed out in theappended claims.

Figure l is a uertical section of a can hureter embodying my invention.Figs. 2 and 3am horizontal sections through the 'arlulreting-r'hamlicrantl aportion of the tion of line 2-2, Fig. 1. Fig. :h is'a dettlfjllll'll perspective view of a nozzlewarricr with theaspiratingnozzles secured thereto.

Referring now to the drawings in detail, like letters of reference referto like parts in the seperal figures.

lhe reference letter A designates the carhuretcr considered as a whole,and it consists of a gasolene fcedchamlier A and a tLl HIl'ttlllg'llttllt nl A herein shown as ast in one piece. but as this is merely amatvertical hore l threaded at its upper end, as

her of choice, the) may be otherwise constructed. Thecarluireting-chamhcr and the gasoleno t'eed-rhalnhcr are connected by aneck X having a conical lJOHn (L on its under side which terminates in athreaded i('i|l o. Cast integrally ith the gasolcuc trawl-chamher on theunder side thereof is an inlettuhe 13 having a threaded opening 7) at a,

point coincident with the -axis of said feedchamherwvhich is closed witha screw-plug N. The inner end of the tube B is in communication with theinterior of the gasolenc feethchamher through a passage C which isbeveled, as at c, to provide a seat for a valve D arranged on the lowerend of a valvestem (1 passing through said passage. The upper end of thegasolene feed-chainher is closed by a cover E having a guide-opening 6arranged therein in line with the passage C in the bottom of saidehamlier, and in said guide-opening e the valve-stem (Z is guided formovement. The valve at the lower end of said stem is adapted to closeupwardly against the valve-seat a, so as to prevent the feeding ofgasolene to said teed-chamber. As is common in gasolenecontrolling-deviees of this kind, the valve-stein. whereit passesthrough the passage C, is of square formation in cross-section, as shownin Fig. '2, so that when the valve D is unsealed, the gasolene can passupward through the passage (l. Secured to said valve-stem is a floatwhich controls the opening and closing of the valve .1) when the levelof the gasohme in the gasolene feed-clmi'nl'ier lowers and rises and itserves to maintain the gasolene at tl'ierequired level in the gasolenechamher, irrespective of the conditions to which the device may hesubjected.

The tm'hureting-cliamher A is in the t'orin of a plain cylinder havingboth ends open and one'end ekternally threaded for connection of a pipeleading to the ignitionchamher of an engine. By thus constructing thecarliureting-chamber, a straight passage is provided therethrough forthe passage of the air. thereby almost entirely eliminating theresistance offered to the air in compelling it to travel through curvedor winding passages, as is commonly practiced. Moreover, by disposingthe passage horizontally, the air enters andleaves thecarburetingchamher more freely.

In the neck connecting the gasolene feedcluunher \\'ith thecarhureting-clianiher is a at f, and provided at its lower end With at:lperingpoltion f terminating in a small cylindrical portion fextending down into the conical hose (1, which boss has a small lateralbore f extending outwardly from the lower rcrh'u'ed end of said verticalbore.

.\ paswge G connects the vertical bore F of said bore so that it mayrestrict or close the flow of gasolene from the gasolene icedchamber.

Secured to the boss or is a imzzle-carrier l which coin )rises a tube tihaving a flat cylindrical head 2' provided with a beveled open ing 2'through which the conical hoss .u is

adapted to pass. The hore of the tube 2' extends from said beveledopening to the opposite end of the tube and is threaded at saidlast-mentioned end to receive a screwplug i and said hore. when thecarrier is applied, rcgistt'rrs with the lateral hore f in said conicalhoes. forming in ell'ect a continuation of said lateral here. Secured tothe threaded stem 5:. of said boss is a nut J wherehy the nozzle-carrierforced upward on said conical boss and held in proper position. Threadedinto said tube '1' are two aspirating-nozzles K, K, adviscdly ofdifferent lengths, so that the upper nozzle K nearest thegasolene-ohamher is in a lower horizontal plane than. the other nozzleK.

The carbureting-chanihcr is provided with two openings at points onopposite sides of its vertical center, through which openings theaspirating-nozzles extend. The nozzle K terminates at the horizontalcenter of the chamber and the nozzle K at a point slightly below thecenter. The passage (i connecting the gasolene fecdchan1l)er with thebore 1*,

the lower end of the bore l" with its lateral extension f and the boreof the luhe 2', serve as a passage for feeding the gasolene from saidfeed-chamber to the aspirating-nozzles.

' A controlling-valve L is provided which is in the form of a butterflyvalve or disk passing through a stern M, journaled for rotation in thetop and bottom of the carhureting-chainher and extending up through thetop of said chamber for connection thereto of a manipu attngdever Nwhich may he operated in any convenient manner from a distant point.Said valve has two semi-circa lar winganetnhers L, L arranged at aslight angle to each other so that when theiving end of ill? Figs. 2peculiarly situated with reference to the stem of the valve and for thispurpose the nozzle-carrier is arranged diagonally, as shown in dottedlines in Figs. 2 and 3, the nozzle K being close to the inner wall ofthe carhureting-chamlJu-r and approximately in line transversely withthe stem of the valve so it at when the valve in closed position. saidnozzle is in close proximity to the edge of the \ving-ntcm u-r it. Thenozzle K. is localctl hetwecn the vertical center of thecarhnretingaihanther and its outer w: ll and a distance from the stem oithe valve M so that the edge of the wing-member If will. just clear itwhen the valve is lining swung into full open position. The purpose ofmaking the aspirating-nozzles oi dill erent lengths is to compel the airdrawn or passing over the upper ends of the nozzle to have an aspiratingntTot-t upon the nozzle K hetore it acts upon the gasoline in the nozzleK hut after the velocity oi the air currents increase by reason of thecontrolling valve being opened, the aspiration client will he upon bothnozzles.

By arranging the nozzles relatively to each other and to the valve asshown. the proper proportion of gasolenc to air will always heHlllllitllliitlv lllt l)t'tll\'t. ot' the speed of the engine and thevelocity of the air currents. When the controllingwalve is in theposition shown in Fig. :5, it is set for low speed. Flu:edgeoil thevalve to the right of its stem is then in contact with the wall of thecarhurcting lttttilllt'i' while the opposite edge is separated from the"all of the chamber by a slight space U. see l' igs. Z and 3. The air atsuch times passes over the nozzle K. carries with it a proportiona eamount of gaeol ne in spray l'orlu takes a slight angular (Jttlll'--t.and passes through the space 0 between the huttcrtlv valve and the wallof the carhuretcr. when in this positi n. the air passing through lilt'carhuretingchatnher (loos not. act upon the rum zle K, owing, to thedistance of said nozzle from said space. The gradual opening of thevalve in the dire tion shown hr the arrow l in Figs. 2 and 3 causes anincr-ase in velocity of the air and a proportionate increase of gasolenefrom the nozzle K owing to the spa e her L and the wall of thecarhuretlngchamber luring increased, and during this opening movement ofthe valve the wingn'teinlicr L moved toward the nozzle K and acts as ashield for said nozzle until the space hetween the edge of saidiast-ntcn and The aspirating-nozzles are between the wing-inconmemher Ifis directly at a rigl1t-angle to the axis of the carburetingchamber andcloses iioltcll \Vlltg ltlfilltll trl and the \all of the 123 the spacehetween the stem M and the wall chanihcr is of a certain area. Thenozzle of the chanther at the right of said stem, the I K is thereforerelied upon to Suppl gas wing-lneinher L leaves a slight space helene tothe air currents during the initial. tween its edge and the wall of thechamher i opening movement of said valve and also on the opposite side.as clearly shown in l during such times as the valve may heheld 15o Ifull eiiecton both nozzles.

inany position within range of such movement. When the valve is openedto a greater degree, the velocity of the air-currents increase and actupon the nozzle- K,

and have a slight as irati'ng effect upon the same also, which e cct islncreased as the wing-member L approaches said nozzle and permits theair to pass between the spaces on opposite sides of the valve.

\Vhen the valve approaches the position shown in Fig. 4, the aircurrents have a full aspirating effect upon the nozzle K and approachalmost full efi'ect on the nozzle K, and in this position the valve isarranged for high speed. Highest speed is obtained when the valve is inthe position shown in Fig. 5 at which time the air currents have It isapparent, therefore, that the speed of the engme may be governed to anicety by the mere manipulation of the controlling-valve and that thegreater-the Valve is opened the higher the speed at which the engine maybe run.

Havin thus described my invention, what I c aim is,-

1. In a carburetor, the combination with a gasolcne feed-chamber andmeans for maintaining the gasolene therein at a constant level, of acarbureting-chamber formed integrally with said gasolene feed-chamberand connected thereto by a neck having a vertical bore and a conicalboss at its lower end in which said bore terminates with a lateralextension, said neck having also a passage-connectin It said bore withthe interior of said gasiilene teed-chamber, a nozzle-carrier providedwith a nozzle extending up into the carbureting-chamber and having abeveled opening through which said conical 'boss extends and a passageconnecting said nozzle with the lateral extension of said vertical bore,means for bolding said nozzle-carrier on said conical boss, and meansfor regulating the flow of gasolene to said nozzle.

In a carburetor, the combination with a gasolen: i'eed-clunnber, ot" acarbnretingchamber comiccl'cd with said gasolene feedchamber by a'neckhaving a conical-boss at its.lower end and a threaded stem on said boss,said neck having also a vertical bore terminating in a right-angledextension opening at the side ot'said boss and connected with saidgasolcne feed-chamber by a passage at a point above said rightangledextension, :1 nozzle-carrier having a head at one end provided with abeveled opening into which said boss fits, a nut threaded onto thethreaded stem of said boss to hold said nozzle-carrier on the lat tor,aspiratleg-nozzles secured to said nozzle-carrier and extending intosaid carburetingchambcr, said nozzles being connected with theright-angled extension of said bore through a passage in said carrier,

a gasolene feed-chamber, of a carburetingchamber connected with saidgasolene feedchamber and having a vertical bore in its wall between saidchambers, said bore belng connected with said gasolene feedchamber by apassage, a removable nozzlecarrier having a gasolenc passage in connection with said bore, aspirating-nozzles extending up into saidcarbureting-chamber and secured to said nozzle-carrier, a -alve in saidcarbureting-chamber to control the aspirating effect of the air on saidnozzles, and means to regulate the flow of gasolene to said nozzles.

4. A carb noting-chamber comprising a casing having an air inlet outlet,a butterfly valve having wing-members on opposite sides of its pivotalpoint with one of said members at a slight angle to the other, andaspirating-nozzles in ope'ative relation to said valve.

5. A carlmreting-chamber comprising a cylindrical easing, a disk- 'alvepivoted eon [rally in said casing and having one-halfthereof at aslightangle to the other half to provide a slight opening between the edge ofsaid valve and the wall of said casing when said valve 1s in closedposition, and two asplratmg-nozzles arranged in a diagonal plane so thatwhen said valve is in closed position one of said nozzles is adjaccntthe valve at one side of its center and when said valve is open theother nozzle is tltljtlfffillt said valve at the other side of itscenter.

6. A carbureting-chamber comprising a casing having a butterfly valvepivoted centrall v so that it may stand transversely or longitudinallywithin said casing, an aspirating-nozzle at one side of the longitudinalcenter of said casing and approximately in line transmrsely with thepivot of said valve, and a second aspiratingoiozzle arranged at theother side of the longitudinal center of said casing and a distance fromthe pivot of said valve of the same to clear in passing it.

7. A' carhin'cting-chamber provided with a butterfly-valveand twioasplrating nozzles on opposite sides of a line passing throu h the pivotof said valve, one of said nozz es being nearer said pivot than theother so that the air passing through said chamberwill not act upon oneof said nozzles during the initial opening movement of said valves.

8. A carburetmg-chamber comprising a cylindrical casing, a disk-valvepivoted centrally in said casing, and two aspirating nozzles situated onopposite sides of the longitudinalrenter of said casing and sopositioned relatively to the Wing-members of and a mixture 85 to permitthe edge 115 said valve that one of said wing-members moves away fromone of said nozzles while the other wing-member moves toward the othernozzle. 5

9. A earbareting-chamber comprising a easing, two aspirating-nozzlesextending up i into said easing with the upper ends ini differenthorizontal planes, and a control-l ling valve in said casing having acentral 5 pivot so disposed relatively to said nozzles t that uponopening said valve an aspirating etleet is produced first upon thenozzle having its upper end in the lower horizontal plane.

10. A earbnretlog-chamber comprising a evlindrical easing. a disk-valvepivoted eon trally in said easing, and two aspirating' nozzles situatedat opposite sides ot the longitudinal center of said casing and so positioned relativol to the pivot of said valve i that one nozzle iscloser to the edge valve when open than the other.

11. In a carburetor, the combination with a gasolene feeda-hamben of aearlinretingchamber ha ring an inlet at one end and an outlet at itsother end, a pair of aspirating nozzles in said carbnretingrhamber ineoni neetion with said gasolene feedrhamber, and a lnittertly-valve insaid earbnret ing-t chamber said aspirating-nozzles being an rangedobliquely to the course of the air so E that the \vinganember on oneside of said of said valve will swing toward and from one of saidnozzles and the other side will swing 12. A earbureting inlet at one endand past wing-member on the the other nozzle.

chamber having an an outlet at its other end, a pair of aspiratingnozzles In said chamber, said aspirating liqaely to the course ofthrough said chamber.

and a valve also in said chamber,

nozzles being arranged ohthe air passing 13. A (:aflbnretin;- chamberhaving an in let at one end and an outlet at its other end a pair ofaspirating-nozzles in said ehanr ber arranged out of longitudinalalinenient and at right angles to passing through said chamber,

in said chamber.

the course of the air and a valve 14. A earhnreting chamber having aninlet at one end and an outlet at its other end, a pair ofaspiralling-nozzles in said chamber, and a butterfly valve also in saidchamber, said aspirating nozzles being arranged out of longitudinalalineinent and one of said nozzles being closer to valve than the other.

the pivot of said In testimony whereof, I have allixed my signature inthe presei'ice mg witnesses.

of two subscrib- WILLIAM J. QTEINBRENNER.

itnesses ELLA C. PLUECKIIAIIN Copies of this patent may be obtained forWashington. D. C.

